Bobby Heyward, a producer and writer, died on Saturday, June 20 at the age of 30. The L.A. County Coroners office confirms that Heyward passed away, but did not confirm an official cause of death.

Heyward's final Instagram post was a tribute to Sangouthai. Heyward posted a photo with Sangouthai, Odom, and another friend and then captioned: "#RIP To my big brother Jamie who always brought light into any room he walked into and laughter as well at all times J you will always be missed. Family for life. #BandOfBrothers #tbt.''

According to sources, Odom is 'beside himself' as he was still close with Heyward prior to his death. Heyward was also quite close with Odom's ex-wife Khloe Kardashian, who reached out to her ex in the wake of his friend's death.